单选题What is correct regarding the configuration shown below?（） （1）static route 0.0.0.0/0 （2）qualified-next-hop 172.30.25.1 preference 7 （3）next-hop 172.30.25.5A The next-hop 172.30.25.1 is selected because the address has the lowest value.B The next-hop 17

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第3题：

What is the most likely reason that an IBGP route that has been selected as a best route is not entered into the IP routing table?（）

• A、Route reflectors are not passing updates properly.
• B、BGP synchronization has been enabled.
• C、The next-hop address is unreachable.
• D、No loopback interface has been configured on a router.

第4题：

Which two of these key fields are used to identify a flow in a traditional NetFlow implementation?（）

• A、source port
• B、output interface
• C、next-hop IP address
• D、source MAC address
• E、destination IP address
• F、next-hop MAC address

第5题：

Which two statements are correct when you use the reject parameter as the next-hop value for a static route?（）

• A、The packet is dropped and the packet's source is marked with the no-readvertise parameter.
• B、The system sends the packet back to the source.
• C、The packet is dropped from the network.
• D、The system sends an ICMP message back to the source of the packet.

第6题：

哪个命令使你能看到import policy应用在BGP相邻体的效果（）

• A、show route protocol bgp  
• B、show route protocol bgp next-hop address   
• C、show route protocol bgp export-policy   
• D、show route advertising-protocol bgp neighbor-address

第7题：

You have been asked to configure your MX240 with a default route toward your upstream ISP atIP address 192.168.100.1. Which command successfully completes this task?（）

• A、user@router# set routing-options static route 0.0.0.0/0 next-hop 192.168.100.1
• B、user@router# set routing-options default route 0.0.0.0/0 next-hop 192.168.100.1
• C、user@router# set forwarding-options static route 0.0.0.0/0 next-hop 192.168.100.1
• D、user@router# set protocols default route 0.0.0.0/0 next-hop 192.168.100.1

第8题：

Which three statements about the BGP next-hop attribute are true？ （）

• A、EBGP sessions between confederation sub ASs do not modify the next-hop attribute.
• B、By default， iBGP sessions change the next-hop attribute learned from eBGP peers to self address.
• C、By default， the next-hop attribute is not changed when a prefix is reflected by the route reflector
• D、EBGP sessions between confederation sub ASs change the next-hop attribute to peer address.
• E、By default， iBGP sessions preserve the next-hop attribute learned from eBGP peers.

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第14题：

Select the 3 best answers describing operation and configuration of Frame-Relay Inverse ARP.（）

• A、Dynamic address mapping uses Frame Relay Inverse ARP to request the next-hop protocol address for a specific connection on its known DLCI
• B、Responses to Inverse ARP requests are entered in an address-to-DLCI mapping table on the router or access server which is used to supply the next-hop protoco address or the DLCI for outgoing traffic
• C、Inverse ARP is enabled by default for all protocols enabled on the physical interface
• D、Inverse ARP is configured using the following command under the Interface configuration ’frame-relaymap dlci （dlci number） protocol protocol-address’
• E、Inverse ARP in Frame-Relay is synonymous of ARP in Ethernet

第15题：

在使用next-hop的方式配置静态路由时，该next-hop的IP地址，应该满足什么样的要求？（）

• A、next-hop必须是与路由器直接相连设备的IP地址
• B、next-hop必须是路由器根据当前路由表可达的IP地址
• C、next-hop可以是任意IP地址
• D、next-hop必须是一台路由器的IP地址

第16题：

What is correct regarding the configuration shown below?（） （1）static route 0.0.0.0/0 （2）qualified-next-hop 172.30.25.1 preference 7 （3）next-hop 172.30.25.5

• A、The next-hop 172.30.25.1 is selected because the address has the lowest value.
• B、The next-hop 172.30.25.1 is selected because it is listed first.
• C、The next-hop 172.30.25.1 is selected because it is the lowest protocol preference.
• D、The next-hop 172.30.25.5 is selected because it is the lowest protocol preference.

第17题：

Which configuration parameter on a Junos device alters the default next-hop resolution behavior of a static route?（）

• A、no-readvertise
• B、resolve
• C、preference
• D、passive

第18题：

登录7302 cli，以下是命令info configure ip执行后的结果信息。同时可知，AWS地址61.139.37.226可以ping通该节点。 #----------------------------------------------------------------------------------------------------------------------------------- echo "ip" #----------------------------------------------------------------------------------------------------------------------------------- shub vrf 0 name defaultVRF route-dest 127.0.0.0/24 next-hop 0.0.0.0 vlan-id 4094 exit route-dest 61.139.37.224/30 next-hop 172.17.4.1 vlan-id 4003 exit route-dest 172.17.4.0/24 next-hop 0.0.0.0 vlan-id 4003 exit exit exit #----------------------------------------------------------------------------------------------------------------------------------- 根据以上信息判断，7302的管理VLAN是（）。

• A、4003
• B、4093
• C、4094
• D、无法确定

第19题：

Which of the following are steps to configure destination-based Remote Triggered Black Hole（RTBH）filtering？（）

• A、Configure OSPF between trigger router and black hole routes
• B、Configure all edge routers with static （reserved） host route to Null0
• C、Configure BGP beteen trigger and black hole routers
• D、Configure on trigger router to advertise victim host route with commumity
• E、Activate black hole by redistributing route for victim into BGP with next-hop set to the static（reserved）host route configured on edge routers

第20题：

Regarding secure tunnel （st） interfaces， which statement is true？（）

• A、You cannot assign st interfaces to a security zone.
• B、You cannot apply static NAT on an st interface logical unit.
• C、st interfaces are optional when configuring a route-based VPN
• D、A static route can reference the st interface logical unit as the next-hop

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